package com.cnzha.mr.inputformat;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;

import java.io.IOException;

/**
 * @Author: zhaoxin
 * @email: zdkk@foxmail.com
 * @Date: 2020/4/4 15:31
 */
public class SequenceDriver {

    public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {

        args = new String[]{"d:/sequence-in","d:/sequence-out"};

        Configuration configuration = new Configuration();
        Job job = Job.getInstance(configuration);

        job.setInputFormatClass(WholeFileInputformat.class);
        job.setOutputFormatClass(SequenceFileOutputFormat.class);

        job.setJarByClass(SequenceDriver.class);
        job.setMapperClass(SequenceMapper.class);
        job.setReducerClass(SequenceReduce.class);
        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(BytesWritable.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(BytesWritable.class);

        FileInputFormat.setInputPaths(job, new Path(args[0]));
        FileOutputFormat.setOutputPath(job, new Path(args[1]));

        boolean result = job.waitForCompletion(true);

        System.exit(result ? 0 : 1);
    }

}
